Gear-shifting mechanism.



' H. A. MYERS.

GEAR SHIFTING MECHANISM.

APPLICATION FILED DEC. 8, 1913.

Patented July '7, 1914.

2 SHBET%SHEET 1 FIIILE H. A. MYERS. GEAR SHIFTING MECHANISM.

APPLIOATION FILED DEC. 8, 1913.

1,102,787., Patented July 7, 1914.

2 SHEETS-SHBB1 i.

IN W5 A TOR W 11 TTURNEY a citizen. of the vehicle; Fig.

UNITED STATES OFFICE.

HUBER! A. MYERS, OF TOLEDO, OHIO, ASSIGNOR 0F ONE-HALF T0 ALBERT A..ATWOOD,

.1 2 OF TOLEDO, OHIO.

GEAR SHIFTING MECHANISM.

Specification of Letters Patent.

Patented J uly '7, 1914.

Application filed December 8, 1913. Serial No. 805,281.

To all whom, it may concern:

Be] it known that I, HUBERT A. Mrnns, United States of America, residingat Toledo, Lucas county, Ohio, have invented 'a new andusefulGear-Shifting Mechanism, of which the following is a specification. J

This invention relates to features of sunlicity of control betweendriving and rive-n members having a plurality of drivin relations.

ihis invention has utility when embodled in connection with variablespeed driving mechanisms, as in motor vehicles.

Referring to the drawings: Figure 1 is a side elevation, with partsbroken away, of an embodiment of the invention. in a motor 2 is a planview of the steering wheel; Fig. 3 is a perspective view of the crankedshaft. and yieldable actuating connection therefor, of the selector;Fig. 4 is a side elevation. with the sleeves in section, of theyieldable actuating connection of the selector; Fig. 5 is a plan view,with parts broken away, of the variable speed drive or transmission, andfeatures of control therefor; Fig. 6 is a section on an enlarged scale,on the line VIVI, Fig.5,

looking in the direction of the arrow; F1g. 7 is a section on the lineVIIVII, Fig. 6, looking in the direction of the arrow; Fig. 8 is anelevation, looking from the right in Fig. 6 of the first actuator disk;Fig. 9 is an elevation of the second actuator disk; Fig. 10 is anelevation of the first shifting disk; and Fig. 11 is an elevation of thesec- 0nd shifting disk.

The motor vehicle 1 isprovided with the steering wheel 2 in which ismounted the selector arm 3 mounted on the shaft 4 (Figs. 1, 2)' carryingthe bevel gear 5 in mesh with thebevel gear 6 on the selector shaft 7.

.1 :Fixed to the selector shaft 7 is the spiral sprmg Shaving its outerend fast to the arm 9 loosely sleeved on the shaft 7. This spring 8holds the arm 9 against the pin 10 carried by the loose arm 11, theopposite end of the pin 10 having its other side abutted by the arm 12held thereagainst bythe spring 13, similar to the spring 8 butoppositely coiled and having its inner end fast to the shaft 14 inalinement with the shaft 7. v The three 5.1oose arms with the twosprings form a yielding connection tending to maintain the themechanism.

shafts 7 and 14 in similar angular position, but permitting relativemovement thercbetween when resistance is interposed. Upon release ofsuch resistance the shafts at once assume their normal angular relation(Figs. 3, 4.).

The shaft 7 has formed therein the crank arms 15, 16, 17, 18, equallydisposed in about fifth relations, except that the spacing between thearms 17 18, is double and corresponding to the N position of the arm 3,indicating disconnected or neutral setting of The shaft 7 with itsyieldable connection and cranks is disposed in the transmission housing19.

For directly controlling the driving, the pedal or foot lever 20 whenthrust forward against the resistance of the springs 21 releases theclutch 22 from driving by the motor 23 the main drive shaft 24 extendingto the transmission housing 19 (Figs. 1, 5). This shaft 24 has fastthereon the gear 25 in mesh with the gear 26 on the parallelcountershaft 27. Fast on the shaft 27 are the gears 28, 29, and 30, thelatter being in mesh with the intermediate gear 31. Shifting of the gear32 by the arm 33 toward the gear 25 clutches up for direct driving athigh speed forward from the shaft 24. Opposite shifting brings the gear32 in mesh with the gear 28 for intermediate or second speed forward.Shifting of the gear 34 into mesh with the gear 29 is the connection forslow speed forward, while opposite shifting of the gear 34 as broughtabout .by the arm 35, connects up through the gear 31 for reverse orbackward driving. v

In the thrusting forward of the foot lever 20, the link 36 connectedthereto, rocks the crank 37 of the shaft'38 in the housing 19. Fast tothe shaft' 38 is the pinion 39 in mesh with the pinion 40 on the shaft41 carried by the bearing bracket 42 in the housing 19. This pinion 41serves to oscillate the first actuator member or disk 43 in adimotion-opposite to the travelof the shaft 38 which has fast thereonthe second actuator disk 44, adjacent the disk 43, and accordinglysimultaneously oppositely oscillated. The bearing 45 serves to positionthe disk 43, by loosely engaging the shaft 38 between the pinion 39 andthe disk 44.

Loosely mounted on the shaft 38 adjacent each other and the actuatordisks 43,

crank arms.

44, are the shifting disks 46, 47, respectively connected to theshifting arms 33, 35'

(Fig. 6).

The selector determines the connection for the driving relation by theposition of the i In Fig. 7 the crank arm 15 is shown as forcing theplunger 48 against the resistance of the spring 49 into connectingposition. The plunger 48 carries the disk orcollar 50. The plunger ismounted in the hole 51 of the first actuator member 43 (Fig. 8), passesthrough the slot 52 in the second actuator member 44 (Fig. 9). Theenlargement 53 in the slot 52 permits thrusting of the plunger 48 intodriving relation in the hole 54 of the shifting member 46 (Fig. 10

only when the disks are oscillated 11113011611 tral disconnectedposition. Similarly, the relative-travel of the disks 43, 44, takes thecollar out of alinement or registering position with the enlargement 53and therefore holds the plunger locked in connecting or disconnectingposition as controlled initially by the crank arm 15. The arm 15accordingly connects the member 46 to actuate the arm 33 for a drivingconnection in intermediate speed position, as the springs 21 cause thepedal 20 to recover. The shifting accordingly occurs duringdisconnection of the clutch 22, and requires no special manipulation bythe driver, other than the preliminary selection which may occur at anytime independently of the actual shifting.

The crank 16 controls the connecting plunger 55, normally held indisconnecting position by its spring 49. Its initial position ofdisconnection or throw is determined by its disk 50 riding out ofregistry with the opening 53 in the slot 56. This plunger 55 is drivenby its hole connection 57 with the second actuator 44, and transmitsthis actuation by engaging the hole 58 in the oscillating shiftingmember 46, thus connecting up for high speed'position of trans-,mission, I v

The crank 17 forces the plunger 59 againstits spring 49. This plungerhas driving connection at the hole 60 with the second. actuator 44 andmay reciprocate as its collar 50 registers with the enlargement 53 inthe slot 61 of the shifting member 46. Driving engagement is made withthe sec- .ond shifting member 47 by the plunger 59 entering the hole 62,serving to shift theparts for slow speed forward connecting position ofthe variable speed mechanism.

The crank 18 controls the reciprocations of the plunger 63 normallymaintained in disconnecting position by its spring 49. This plunger hasdriving engagement by its mounting in the hole '64 of the first actuatordisk 43. Its throw is limited to neutralor disconnected position of thedisks. by its collar 50 registering with the enlargement 53 in the slot65 in the secondv actuator 44.

' mechanism for establishing be thrown by cranked This plunger 63 passesfreely through the slot 66 in the first shifting member 46 to engage inthe opening 67 of the second shitting member 47, serving to connect themechanism for driving in reverse or backward die 70 rection. Thesedrivingconnections control the direction and speed of rotation of theshaft 68,

While the yielding connection shown" for the selector, in the-disclosureherein, the spring release of the connecting plungers l independently ofthe position of the cam throw of the setting crank for the par-Qti'cular connection, does not necessitatethe,

yielding action of the selector except for the? i setting in the nextposition. The lock re lease positions of the disconnected plungers holdthe crank shaft from. ing to a selection. The throw of the pedal20brings all of the mechanism into discon necting position, when theselector may come H plete its selected throw, efl'ectin thedesiredconnecting of the shifting mem v ers, so that, on the recover travel ofthe"pedalf,20-, the transmission, is connected just before the .9'0clutch 22 is connected for driving, i I

- What is claimed and it is desired tosecure by LettersPatent is: v l pI 1. A driving member, a driven member, i a plurality of drivingrelations therebetween including ,a', multiple cranked selectorembodying a pluj rality of rigidly connected independently activecranks, and actuating means con trolled by the selector. Y L

2. A' drivingmember, a driven member, mechanism for establishing a'pluralitytof driving relations therebetween includinga" select rembodying a rotatable shaft '-pro- 1 vlded with a crank for each drivingrela- 106 tron, and actuating means controlled by'the selector. l 5 i I3. A driving member, a driven member mechanism for establishing aplurality of driving relations therebetween "including a 110 selectorembodying a plurality ot-reciprocable plungers, and actuating meanscontrolled by the selector embodying pairs tr: members connected by theplungers, I I

4. A driving member, a driven member, mechanism for establishing aplurality of 5 driving relations therebetween including a selectorembodying a cranked shaft, plum gers disposed to be thrown by crankedshaft rotation, and actuating means controlled by the selecton; I 5. Adriving member, a driven member, mechanism for establishing-a pluralityofdriving relations therebetweenincluding-a selector embodying a crankedshaft, a plun- -i25 ger for each driving relation disposed to i shaftrotation, and actuatlng means controlled by the selector. 6. A drivingmember, a driven member,

mechanism for establishing a plurality of 13o complete shifts;

driving relations therebetween including a selector, and meanscontrolled b the selector embodying oppositely oscil ating actuatormembers laterally adjacent.

7. A driving member, a driven member, mechanism for establishing aplurality of driving relations therebetvveen including a selector, andmeans controlled by the selector embodying oppositely movable actuatormembers, and laterally adjacent oscillating members connect'iblethereto.

8. A driving member, a driven member, mechanism for establishing aplurality of driving relations therebetween including a selector, andmeans controlled by the selector embodying a pair of oppositelyoscillating actuator disks, and a pair of laterally adjacent disksconnectible thereto.

A driving member, a driven member, mechanism for establishing aplurality of driving relations therebetween including a' selector, andmeans controlled by the selector embodying coaxial actuators and membersconnectible thereto.

10. A driving member, a driven member,v mechanism for establishing aplurality of driving relations therebetween including op- Copies of thispatent may be positely oscillating actuator members, adjacent disks, anda selector for connecting the members and disks.

11. A driving member, a driven member, mechanism for establishing aplurality of driving relations therobetween including 0ppositelyoscillating actuator members, con nectible members, and a selectorembodying a cranked shaft having means to conne t the actuator membersto drive the connectible members; A

12. A driving member, a driven member, mechanism for establishing aplurality of driving relations therebetween including oppositelyoscillating actuator members, connect-ible members, and a selectorembodying a cranked shaft and plungers on the shaft positivelycontrolled by the shaft to connect the actuator members withthe'connectible members.

In Witness whereofl aflix my signature in the presence of tWo witnesses.

.HUBERT A. MYERS.

Witnesses 2 i C. H. RAUOI-I, GEO. E. KIRK.

obtained for five cents each, by addressing the Commissioner of new,

Washington, .D. G.

